Move AppListModel::Users to AppListViewDelegate

ash/shell/app_list.cc

Index: ash/shell/app_list.cc
diff --git a/ash/shell/app_list.cc b/ash/shell/app_list.cc
index fe62d216d8fe2a9eb5be620b1dee4b9fa684f85e..209f5a8d3f2f5e6dbb8bc5e5ac0b2cd16c1997e4 100644
--- a/ash/shell/app_list.cc
+++ b/ash/shell/app_list.cc
@@ -232,6 +232,10 @@ class ExampleAppListViewDelegate : public app_list::AppListViewDelegate {
     // Nothing needs to be done.
   }
 
+  virtual const Users& GetUsers() const OVERRIDE {
+    return users_;
+  }
+
   virtual void InitModel(app_list::AppListModel* model) OVERRIDE {
     model_ = model;
     PopulateApps(model_->item_list());
@@ -324,6 +328,7 @@ class ExampleAppListViewDelegate : public app_list::AppListViewDelegate {
   }
 
   app_list::AppListModel* model_;
+  Users users_;
 
   DISALLOW_COPY_AND_ASSIGN(ExampleAppListViewDelegate);
 };